Question

Simplify (2x-y+z)^2 by using suitable identity

Answer 1

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Answer 2

Answer

(2x−y+z)

2

⇒A

2

+B

2

+C

2

=A

2

+B

2

+C

2

+2AB+2BC+2CA

⇒(4x

2

+y

2

+z

2

−4xz−2yz+4xz)

solution